EP0068996A1 - Verbesserung der Konzentrieranlagen zur Dampfkompressionsverdampfung einer Flüssigkeit, insbesondere Milch - Google Patents

Verbesserung der Konzentrieranlagen zur Dampfkompressionsverdampfung einer Flüssigkeit, insbesondere Milch Download PDF

Info

Publication number
EP0068996A1
EP0068996A1 EP82401123A EP82401123A EP0068996A1 EP 0068996 A1 EP0068996 A1 EP 0068996A1 EP 82401123 A EP82401123 A EP 82401123A EP 82401123 A EP82401123 A EP 82401123A EP 0068996 A1 EP0068996 A1 EP 0068996A1
Authority
EP
European Patent Office
Prior art keywords
mechanical
compressor
effect
evaporator
steam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82401123A
Other languages
English (en)
French (fr)
Other versions
EP0068996B1 (de
Inventor
Jacques Jean Ciboit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAGUILHARRE SA
Original Assignee
LAGUILHARRE SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9259943&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0068996(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LAGUILHARRE SA filed Critical LAGUILHARRE SA
Priority to AT82401123T priority Critical patent/ATE15335T1/de
Publication of EP0068996A1 publication Critical patent/EP0068996A1/de
Application granted granted Critical
Publication of EP0068996B1 publication Critical patent/EP0068996B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C1/00—Concentration, evaporation or drying
    • A23C1/12—Concentration by evaporation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/26—Multiple-effect evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/2803—Special features relating to the vapour to be compressed
    • B01D1/2812—The vapour is coming from different sources
    • B01D1/2815—At least one source is a compressor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/284—Special features relating to the compressed vapour
    • B01D1/2843—The compressed vapour is divided in at least two streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/28—Evaporating with vapour compression
    • B01D1/2884—Multiple effect compression

Definitions

  • the present invention relates to an installation for concentrating a liquid product, such as a dairy product, a chemical product or an industrial effluent for example, comprising at least two evaporators arranged in series on the product, each being single acting or multiple effect and each of the effects comprising a steam heating circuit and a steam circuit created by evaporation, at least two of these evaporators being with mechanical vapor compression and therefore each comprise a mechanical steam compressor.
  • a liquid product such as a dairy product, a chemical product or an industrial effluent for example
  • the object of the present invention is to remedy these drawbacks and to do this, it provides an installation which is characterized in that the evaporators are connected in a multiple-effect evaporator configuration, it being understood that in addition to the mechanical compressors of steam, this installation can include at least one other means of heat input.
  • a multiple-effect evaporator is constituted by several evaporation bodies, the evaporated vapor created in the first body (called the first effect) being used as a source of calories to heat the second body (called the second effect), the evaporating vapor created in the second body being used as a source of calories to heat the third body (called the third effect), and so on to the last body (called the last effect).
  • the steam circuit created from an evaporator or from a given effect includes all the parts of this evaporator or effect which are in contact with the vapor created.
  • the heating circuit of an evaporator or of a given effect includes all the parts of this evaporator or effect in which the heating vapor gives up its calories to the product to be evaporated.
  • all the evaporators are related so as to obtain an installation which has only the physical configuration of a multiple-effect evaporator, and therefore not necessarily the same operation.
  • this installation can function as a multiple-effect evaporator, that is to say that the vapor created by evaporation passes from the vapor circuit created by the evaporators into the steam heating circuit of the following evaporators.
  • the process The opposite can also happen, that is to say that steam from the heating steam circuit of a given evaporator passes into the steam circuit created by another evaporator located upstream.
  • the evaporators used in the installation which is the subject of the present application could be each single-acting or multiple-acting. It will of course be understood that by connecting these evaporators in a multiple-effect evaporator configuration, the vapor circuit created from the unique effects of the single-effect evaporators or from the last effects of the multiple-effect evaporators will be connected respectively to the vapor circuit of heating of the single effects of single-effect evaporators or of the first effects of multiple-effect evaporators.
  • the discharge of the mechanical compressor from at least one evaporator can be connected respectively to any of the steam circuits created located between the mechanical compression evaporator considered and the mechanical compression evaporator which precedes it, that is to say ie one that operates at a higher evaporation temperature.
  • the discharge of at least one mechanical compressor can also be connected respectively to the suction of the mechanical compressor which precedes it, that is to say that which operates at a higher evaporation temperature.
  • the discharge of at least one mechanical compressor can be connected respectively to any one of the steam heating circuits located between the mechanical compressor considered and the mechanical compressor which precedes it, that is to say the one which delivers a steam hotter than that delivered by the mechanical compressor considered.
  • At least two of the mechanical compressors can be mounted on the same shaft (or on separate shafts) driven by a drive shaft by means of a drive multiplier.
  • FIG. 1 The installation of FIG. 1 comprises a first evaporator I of the double-acting type 1,2 and a second evaporator II of the single-acting type 3, with effects 1,2 and 3 being associated respectively the vapor-liquid separators 4,5 , 6.
  • the evaporators I and II are afloating, but it is certain that the invention extends to any other type of evaporator.
  • the vapor circuit created by evaporation (at 75 ° C in the example chosen) of effect 1 is made up of all the elements containing said vapor created, these elements being inter alia the separator 4 and the duct 7, the one of the ends is in relation to the upper part of the separator 4 and the other opens into the heating body 2a of effect 2.
  • the vapor circuit created by evaporation (at 70 ° C in the example chosen) of effect 2 is constituted in particular by the separator 5 and the duct 8 coming from the upper part of the separator 5 and opening into the heating element 3a of effect 3.
  • the steam circuit created by evaporation (at 60 ° C in the example chosen) of effect 3 is constituted in particular by the separator and the conduit 9 coming from the upper part of the latter and leading to the assira - tion of the mechanical steam compressor 10 which will be discussed below.
  • the steam heating circuit for effects 1, 2 and 3 is respectively constituted by the heating body 1a (at 80 ° C. in the example chosen) of effect 1, the heating body 2a (at 75 ° C in the example chosen) and the heating body 3a (at 70 ° C. in the example chosen).
  • evaporators I and II are well connected according to a multiple-effect evaporator configuration.
  • the compressor 11 compresses the steam to 70 ° C so as to bring it to 80 ° C and the compressor 10 compresses the steam to 60 ° C so as to bring it to 70 ° C .
  • the product to be concentrated arrives at the head of the first effect 1 through a conduit 15, effect in which it undergoes a first evaporation before being brought from the base of this same effect 1 at the head of the second effect 2 by a pump 16 and a conduit 17, effect 2 in which it undergoes a second evaporation.
  • the milk thus preconcentrated is then brought from the base of the effect 2 to the head of the evaporator 3 by a pump 18 and a duct 19, evaporator in which the milk undergoes a final concentration before being drawn off by a pump 20 and a conduit 21.
  • the path of the evaporation vapor created in effect 1, is 4 ⁇ 7 ⁇ 2a.
  • the quantity of steam available at the outlet of the separator 5 is greater than that necessary for the function tion of the evaporator I, the surplus not sucked by the compressor 11 will join the compressed steam from the compressor 10 and will serve as a source of calories in the heating body 3a.
  • the delivery duct 14 of the mechanical compressor 10 is connected to the steam circuit created by the evaporation of the effect 2, and more precisely to the duct 8 downstream of the bypass 12.
  • the discharge 14 of the compressor 10 is no longer connected to this duct 8, but to the suction duct 12 of the compressor 11, the rest of the installation being in any point identical to that of FIG. 1 which has just been described.
  • all the steam coming from the compressor 10 will be recompressed in the compressor 11 and steam in an amount at least equivalent to that coming from the compressor 10 will go through the pipe 8 towards the heating body 3a.
  • the discharge 14 of the mechanical compressor 10 can be connected to the duct 8 upstream of the bypass 12, the rest of the installation being unchanged with respect to that of FIG. 1.
  • This delivery arrangement 14 implies that part of the steam from compressor 10 is recompressed in compressor 11.
  • the direction of circulation of the product to be concentrated is arbitrary. It could first cross the effect. 3, then effect 1 (or 2 ), then finally effect 2 (or 1).
  • the installation can comprise more than two evaporators, each evaporator being able to be single or multiple effect and in this case more than two evaporators can be with mechanical vapor compression.
  • the evaporator I could comprise only one effect or include more than two effects, the evaporator II possibly being for multiple effect.
  • FIG. 3 represents an installation which comprises, in series, an evaporator III of the double-acting type 23, 24, an evaporator IV with single effect 25 and an evaporator V with single effect 26, with effects 23 to 26 being associated respectively the vapor-liquid separators 27, 28, 29, 30.
  • the steam circuit created by the evaporation of the effect 23 is constituted inter alia by the separator 27 and the conduit 31, one of the ends of which is in relation to the upper part of said separator 27 and the other opens into the body of heater 24a of effect 24, heating body which constitutes the heating steam circuit for this effect.
  • the steam circuit created by the evaporation of the effect 24 comprises in particular the separator 28 and the duct 32 which comes from the upper part of the latter and which opens into the steam circuit for heating the effect 25 , that is to say in the heating body 25a of this effect.
  • the steam circuit created by the evaporation of the effect 26 comprises, for its part, the separator 29 and the duct 33 which comes from the upper part of the separator 29 and which opens into the heating body 26a of the effect 26 , heating element which constitutes the heating steam circuit for this effect.
  • the separator 30 is for its part connected by the conduit 34 to a vacuum source (not shown).
  • Evaporators III and IV are with mechanical vapor compression. More specifically, they each comprise a mechanical compressor 35, 36, the duct. suction 37 of the compressor 35 being connected to the duct 32, its delivery duct 38 opening into the heating body 23a of the effect 23. As for the mechanical compressor 36, its suction duct 39 is connected to the duct 33 and its duct delivery 40 opens into the heating body 25a.
  • the product to be concentrated arrives at the head of effect 23 through a conduit 41, passes through this effect 23, is then brought in by a pump 42 and a conduit 43 at the head of l effect 24, then successively from the base of the latter at the head of the effect 25 and from the base of the latter at the head of the effect 26 respectively by the pumps and conduits 44, 45 and 46, 47, before be withdrawn at the base of the last effect 26 by the pump 48 and the conduit 49.
  • the compressors 35 and 36 can be mounted on the same motor shaft.
  • Figures 4 and 5 show that the two compressors 10 and 11 of the installations of Figures 1 and 2 can either be mounted on the same shaft 50 driven by a drive shaft 5 1 via a drive multiplier 52 ( Figure 4), or each mounted on a separate shaft 53, 54, the latter being driven by the same drive shaft 55 via a drive multiplier 56 (FIG. 5).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Dairy Products (AREA)
EP82401123A 1981-06-26 1982-06-18 Verbesserung der Konzentrieranlagen zur Dampfkompressionsverdampfung einer Flüssigkeit, insbesondere Milch Expired EP0068996B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401123T ATE15335T1 (de) 1981-06-26 1982-06-18 Verbesserung der konzentrieranlagen zur dampfkompressionsverdampfung einer fluessigkeit, insbesondere milch.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8112689A FR2508335A1 (fr) 1981-06-26 1981-06-26 Perfectionnement aux installations de concentration par evaporation a compression de vapeur d'un produit liquide, tel qu'un produit laitier
FR8112689 1981-06-26

Publications (2)

Publication Number Publication Date
EP0068996A1 true EP0068996A1 (de) 1983-01-05
EP0068996B1 EP0068996B1 (de) 1985-09-04

Family

ID=9259943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401123A Expired EP0068996B1 (de) 1981-06-26 1982-06-18 Verbesserung der Konzentrieranlagen zur Dampfkompressionsverdampfung einer Flüssigkeit, insbesondere Milch

Country Status (5)

Country Link
EP (1) EP0068996B1 (de)
AT (1) ATE15335T1 (de)
DE (1) DE3266027D1 (de)
ES (1) ES513499A0 (de)
FR (1) FR2508335A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839949A1 (de) * 1996-11-01 1998-05-06 Kvaerner Pulping Oy Verfahren und Vorrichtung zur Erhöhung der Verdampfungskapazität eines mehrstufigen Abschlussverdampfers in einer Zellstofffabrik

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR449399A (fr) * 1911-05-23 1913-02-25 Techno Chemical Lab Ltd Perfectionnements aux appareils d'évaporation, de distillation et autres appareils analogues
FR532225A (fr) * 1919-09-10 1922-01-30 Procédé pour évaporer des liquides dans des tubes longs et surtout verticaux, au moyen de vapeur de chauffage circulant autour de ces tubes
US3423293A (en) * 1965-02-04 1969-01-21 Robert B Holden Apparatus for vapor compression distillation of impure water
FR2448377A1 (fr) * 1979-02-08 1980-09-05 Laguilharre Pierre Procede de concentration par mise en oeuvre d'un evaporateur mixte a thermocompression de vapeur-compression de vapeur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR449399A (fr) * 1911-05-23 1913-02-25 Techno Chemical Lab Ltd Perfectionnements aux appareils d'évaporation, de distillation et autres appareils analogues
FR532225A (fr) * 1919-09-10 1922-01-30 Procédé pour évaporer des liquides dans des tubes longs et surtout verticaux, au moyen de vapeur de chauffage circulant autour de ces tubes
US3423293A (en) * 1965-02-04 1969-01-21 Robert B Holden Apparatus for vapor compression distillation of impure water
FR2448377A1 (fr) * 1979-02-08 1980-09-05 Laguilharre Pierre Procede de concentration par mise en oeuvre d'un evaporateur mixte a thermocompression de vapeur-compression de vapeur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839949A1 (de) * 1996-11-01 1998-05-06 Kvaerner Pulping Oy Verfahren und Vorrichtung zur Erhöhung der Verdampfungskapazität eines mehrstufigen Abschlussverdampfers in einer Zellstofffabrik
US6132555A (en) * 1996-11-01 2000-10-17 Kvaerner Pulping Oy Method and arrangement for increasing evaporation capacity of a multi-stage evaporator of spent liquor in a pulp mill

Also Published As

Publication number Publication date
EP0068996B1 (de) 1985-09-04
FR2508335A1 (fr) 1982-12-31
DE3266027D1 (en) 1985-10-10
ES8304439A1 (es) 1983-03-16
ATE15335T1 (de) 1985-09-15
FR2508335B1 (de) 1983-12-23
ES513499A0 (es) 1983-03-16

Similar Documents

Publication Publication Date Title
EP3027288B1 (de) Einrichtungen zur thermischen destillation mit mechanischer dampfkompression
LU81168A1 (fr) Perfectionnement aux evaporateurs a recompression mecanique de vapeur
EP0352688A1 (de) Vakuumpumpe
EP0068996B1 (de) Verbesserung der Konzentrieranlagen zur Dampfkompressionsverdampfung einer Flüssigkeit, insbesondere Milch
EP0008260A1 (de) Turbinenpumpe
FR2531418A1 (fr) Procede et appareil de distillation de saumure pour l'obtention d'eau douce
FR2496484A1 (fr) Procede et installation de distillation, notamment d'un produit de fermentation alcoolique, avec concentration simultanee du residu de distillation par evaporation
WO1995012992A1 (fr) Installation pour le traitement de matieres biologiques hydratees
FR2496482A3 (fr) Procede et installation d'evaporation a compression mecanique de vapeur avec mise en oeuvre d'un compresseur a plusieurs etages
EP0133095A1 (de) Verfahren zum Wiederaufheben des kalorischen Wärmestandes vorhanden in einem Fluidum und Anwendung der kalorischen Resultante für die Heizung eines Fluidums
LU82348A1 (fr) Procede de lancement du groupe compresseur d'un evaporateur a recompression mecanique de vapeur
FR3069449A1 (fr) Installation de concentration de jus de type cuite continue et/ou cuite discontinue equipee de compresseurs mecaniques de vapeur montes en serie
EP0066026A1 (de) Verfahren zum Konzentrieren eines kalten Produkts und Vorerwärmen eines Zirkulationsfluidums und Vorrichtung zu dessen Durchführung
EP0067745A1 (de) Verfahren zur Konzentrierung eines kalten flüssigen Produktes, etwa eines kalten Milchproduktes, mit gleichzeitiger Vorerhitzung einer anderen Flüssigkeit als der Erstgenannten
FR2583651A1 (fr) Evaporateur monocorps pour la concentration d'au moins un produit liquide, comportant au moins deux sections d'evaporation et installation d'evaporation comprenant un tel evaporateur
FR2508617A1 (fr) Procede et appareil pour extraire de l'energie thermique d'une substance
FR2523465A1 (fr) Dispositif d'aspiration et de traitement de gaz, notamment de gaz provenant de la desodorisation de corps gras
EP2823182B1 (de) Verbesserte pumpeinrichtung und ein steuerungsverfahren für solch eine pumpeinrichtung
EP0211726B1 (de) Wärmepumpvorrichtung und eine solche Vorrichtung benutzende thermische Trennungsanlage
US20210395842A1 (en) System to produce concentrate maple sap and associated method
FR3072451A1 (fr) Procede et appareil de separation d'air par distillation cryogenique
FR2474882A1 (fr) Procede de concentration d'un produit froid et de prechauffage d'un fluide en circulation et installation pour sa mise en oeuvre
FR2521834A1 (fr) Procede et dispositif pour la fabrication de lait en poudre
FR2514877A1 (fr) Dispositif de distillation notamment pour machine de nettoyage chimique
CH391734A (fr) Turbine à fluide élastique

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19830616

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19850904

Ref country code: AT

Effective date: 19850904

REF Corresponds to:

Ref document number: 15335

Country of ref document: AT

Date of ref document: 19850915

Kind code of ref document: T

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19850930

REF Corresponds to:

Ref document number: 3266027

Country of ref document: DE

Date of ref document: 19851010

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: GEA WIEGAND GMBH

Effective date: 19860214

NLR1 Nl: opposition has been filed with the epo

Opponent name: GEA WIEGAND GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19860618

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19860630

Ref country code: LI

Effective date: 19860630

Ref country code: CH

Effective date: 19860630

Ref country code: BE

Effective date: 19860630

BERE Be: lapsed

Owner name: LAGUILHARRE S.A.

Effective date: 19860630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19870101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19870303

GBPC Gb: european patent ceased through non-payment of renewal fee
RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19861104